SERVICE MANUAL
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
HCD-RG444
AEP Model
MINI HI-FI COMPONENT SYSTEM
9-877-899-01
2004E1678-1
© 2004.05
• HCD-RG444 is the tuner, deck, CD and
amplifier section in MHC-RG444S.
SPECIFICATIONS
Amplifier section
Front speaker
DIN power output (rated): 100 + 100 watts (6 ohms at
1 kHz, DIN)
Continuous RMS power output (reference):
120 + 120 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference):
240 + 240 watts (6 ohms at
1 kHz, 10% THD)
Sub woofer
DIN power output (rated): 100 watts (6 ohms at
Continuous RMS power output (reference):
120 watts (6 ohms at
50 Hz, 10% THD)
Music power output (reference):
240 watts (6 ohms at
50 Hz, 10% THD)
GAME INPUT AUDIO L/R (phono jacks):
voltage 250 mV,
impedance 47 kilohms
GAME INPUT VIDEO (phono jack):
1Vp-p, 75 ohms
Outputs
PHONES (stereo mini jack):
accepts headphones of
8 ohms or more
VIDEO OUT (phono jack):
max. output level 1Vp-p,
unbalanced, Sync
negative, load impedance
75 ohms
SPEAKER:
accepts impedance of 6 to
16 ohms
SUB WOOFER OUT:
accepts impedance of 6 to
16 ohms
CD player section
System
Compact disc and digital
audio system
Laser
Semiconductor laser
(
λ
=780 nm)
Emission duration:
continuous
Frequency response
2 Hz – 20 kHz (
±
0.5 dB)
Wavelength
780 – 790 nm
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Tape deck section
Recording system
4-track 2-channel, stereo
Frequency response
50 – 13,000 Hz (
±
3 dB),
using Sony TYPE I
cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(50-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
531 – 1,602 kHz (with the
tuning interval set at
9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
Model Name Using Similar Mechanism
HCD-RG222
CD
CD Mechanism Type
CDM74-F1BD81
Section
Optical Pick-up Name
KSM-215DCP/C2NP
Tape deck
Model Name Using Similar Mechanism
HCD-RG222
Section
Tape Transport Mechanism Type
CWM43FF-05
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